There are about 3194 clinical studies being (or have been) conducted in Portugal. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining surgery with chemotherapy may kill more tumor cells. It is not yet known whether chemotherapy before surgery is more effective than chemotherapy after surgery in treating ovarian, peritoneal, or fallopian tube cancer. PURPOSE: This randomized phase III trial is studying chemotherapy given before surgery to see how well it works compared to chemotherapy given after surgery with or without additional surgery in treating patients with stage III or stage IV ovarian cancer, peritoneal cancer, or fallopian tube cancer.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. PURPOSE: Phase II trial to study the effectiveness of temozolomide in treating patients with recurrent oligodendroglial tumors following combination chemotherapy.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug may kill more tumor cells. It is not yet known which regimen of combination chemotherapy is more effective in treating patients with recurrent or metastatic colorectal cancer. PURPOSE: Randomized phase III trial to study the effectiveness of combining fluorouracil, leucovorin, and oxaliplatin in different ways in treating patients with recurrent or metastatic colorectal cancer.
RATIONALE: The use of pelvic drains may help to prevent complications following radical hysterectomy and pelvic lymphadenectomy. It is not known whether receiving pelvic drains during surgery is more effective than receiving no pelvic drains during surgery in patients with uterine, cervical, or vaginal cancer. PURPOSE: Randomized phase III trial to determine if the use of pelvic drains following radical hysterectomy and pelvic lymphadenectomy is effective in treating patients with uterine, cervical, or vaginal cancer.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug and giving drugs in different ways may kill more tumor cells. It is not yet known whether fluorouracil plus cisplatin are more effective than fluorouracil alone in treating patients with metastatic cancer of the pancreas. PURPOSE: Randomized phase III trial to compare the effectiveness of fluorouracil with or without cisplatin in treating patients who have advanced or metastatic cancer of the pancreas.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. PURPOSE: Phase I trial to study the effectiveness of MEN-10755 in treating adults who have recurrent or refractory solid tumors.
RATIONALE: Biological therapies such as BCG use different ways to stimulate the immune system and stop cancer cells from growing. PURPOSE: This randomized phase III trial is studying four different regimens of BCG and comparing how well they work in treating patients who have undergone surgery for bladder cancer.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. PURPOSE: Phase I trial to study the effectiveness of ecteinascidin 743 in treating adults with advanced solid tumors.
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. PURPOSE: Phase II trial to study the effectiveness of docetaxel in treating patients with recurrent or refractory germ cell cancer.
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Adjuvant radiation therapy may kill any remaining tumor cells following surgery or radiosurgery for brain metastases. PURPOSE: This randomized phase III trial is studying surgery or radiosurgery alone to see how well it works compared to surgery or radiosurgery and whole-brain radiation therapy in treating brain metastases in patients with solid tumors.